<PRE><B>Question 876446</B>
Solve for x to get



0.2x+0.5x=2



0.7x=2



x=2/0.7



x=2.857142857 (this is approximate)



-------------------------------------------------------



Check:



0.2x+0.5x=2



0.2(2.857142857)+0.5(2.857142857)=2 ... replace EVERY copy of x with 2.857142857



0.5714285714+1.4285714285=2



1.9999999999=2 



Due to round off error, we&#39;re going to get very close to 2, so this practically confirms the answer.</PRE>